diff --git a/src/thermophysicalModels/specie/reaction/Reactions/NonEquilibriumReversibleReaction/NonEquilibriumReversibleReaction.C b/src/thermophysicalModels/specie/reaction/Reactions/NonEquilibriumReversibleReaction/NonEquilibriumReversibleReaction.C
index d3b43b8c6..5d39505f7 100644
--- a/src/thermophysicalModels/specie/reaction/Reactions/NonEquilibriumReversibleReaction/NonEquilibriumReversibleReaction.C
+++ b/src/thermophysicalModels/specie/reaction/Reactions/NonEquilibriumReversibleReaction/NonEquilibriumReversibleReaction.C
@@ -240,7 +240,7 @@ Foam::NonEquilibriumReversibleReaction
     ReactionRate
 >::beta() const
 {
-    return rk_.beta();
+    return fk_.beta();
 }